It seems, that this is not related to local disk space - as I initally
thought - but to too small memory. It only happens with VMs with little
RAM (1024 MB). As soon as we raise the available memory to 2048 MB,
kickstarting works fine. The RHEL 7 installation guide states, that the
minimal memory requirement is 1 GB, so the network installation /should/
work.

Is there a way to install such hosts w/o having to temporarily raise the
available memory?

Re: [CentOS] How to PXE kickstart hosts with little memory (Error: "Warning: /dev/root does not exist")?

On 04/21/2017 12:49 PM, Frank Thommen wrote:
>
> It seems, that this is not related to local disk space - as I initally
> thought - but to too small memory. It only happens with VMs with
> little RAM (1024 MB). As soon as we raise the available memory to
> 2048 MB, kickstarting works fine. The RHEL 7 installation guide
> states, that the minimal memory requirement is 1 GB, so the network
> installation /should/ work.